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main.cpp
00001 #include "mbed.h" 00002 #include "rtos.h" 00003 00004 /* Mail */ 00005 typedef struct { 00006 float voltage; /* AD result of measured voltage */ 00007 float current; /* AD result of measured current */ 00008 uint32_t counter; /* A counter value */ 00009 } mail_t; 00010 00011 Mail<mail_t, 16> mail_box; 00012 00013 void send_thread (void) { 00014 uint32_t i = 0; 00015 while (true) { 00016 i++; // fake data update 00017 mail_t *mail = mail_box.alloc(); 00018 mail->voltage = (i * 0.1) * 33; 00019 mail->current = (i * 0.1) * 11; 00020 mail->counter = i; 00021 mail_box.put(mail); 00022 Thread::wait(1000); 00023 } 00024 } 00025 00026 int main (void) { 00027 Thread thread; 00028 thread.start(callback(send_thread)); 00029 00030 while (true) { 00031 osEvent evt = mail_box.get(); 00032 if (evt.status == osEventMail) { 00033 mail_t *mail = (mail_t*)evt.value.p; 00034 printf("\nVoltage: %.2f V\n\r" , mail->voltage); 00035 printf("Current: %.2f A\n\r" , mail->current); 00036 printf("Number of cycles: %u\n\r", mail->counter); 00037 00038 mail_box.free(mail); 00039 } 00040 } 00041 }
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